Rail wheel wear resistance detection device

Abstract

The utility model discloses a rail wheel wear resistance detection device, and specifically relates to the wheel wear resistance detection tool technology field, the rail wheel wear resistance detection device comprises a detection box, the top surface of the detection box is symmetrically provided with a plurality of slide rails, the plurality of slide rails are internally connected with a slide plate in a sliding manner, the outer side of each slide rail is provided with a through groove, and the through groove is provided with a through hole. According to the utility model, when in use, the operation is simple, the relative rotation wear detection between the wheel and the track body and the brake wear detection between the wheel and the track body can be selected as required, the detection efficiency is improved, and the detection cost is reduced. Meanwhile, during brake wear detection, the initial speed of the wheel body can be endowed, the laying length of the track body is reduced, the relative rotation wear of the wheel body and the track body is reduced, and brake wear detection is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel wear-resistant detection tooling, and more specifically, to a rail wheel wear-resistant detection device. Background Art

[0002] In the field of railways, wheels are subjected to enormous pressure, friction and impact loads for a long time. At the same time, as the vehicle speed increases, the dynamic interaction between the wheel and rail increases, and the wheel-rail wear and rolling contact fatigue phenomenon is aggravated accordingly. Failure of wheels and rails due to fatigue, peeling wear, etc. poses a great hidden danger to the safety of high-speed vehicles and may even cause safety accidents. Therefore, wear resistance testing is required during wheel production to ensure wheel quality while reducing safety risks and operating costs.

[0003] Existing wheel wear resistance detection devices generally use a special friction testing machine to make the wheel sample rotate relative to the simulated track material under a specific pressure, and evaluate the wear resistance by measuring the wear of the wheel within a certain period of time. It is necessary not only to measure the relative rotational wear between the wheel and the track, but also to measure the braking wear. In actual rail operation, the wheel braking process plays a vital role. At this time, the friction between the wheel and the track will increase sharply, and the wear conditions produced are very different from the normal driving state. However, general friction testing machines cannot simulate wheel braking, and the wheel needs to be replaced with equipment for detection, which increases the detection time and efficiency. Therefore, a new type of rail wheel wear resistance detection device is needed that can simultaneously simulate the normal rotational wear and braking wear of the wheel. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a rail wheel wear resistance detection device. The technical problem to be solved by the present invention is that general friction testing machines cannot perform wheel braking simulation, and the wheel replacement equipment needs to be tested, which increases the detection time and efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rail wheel wear detection device comprises a detection box, a top surface of which is symmetrically mounted a plurality of slide rails, a plurality of slide rails are slidably connected to each other with a slide plate, an outer side of each of the slide rails is provided with a through groove, an electric telescopic rod is fixedly mounted on both sides of the slide plate, a hydraulic telescopic rod is fixedly mounted on the bottom surface of the slide plate, the bottom surface of the hydraulic telescopic rod is elastically connected to an assembly plate through a mounting plate, a roller is rotatably connected to the bottom surface of the assembly plate, a driving brake device is mounted on the roller, a wheel body is mounted on both ends of the roller, a track body is mounted on the bottom wall of the detection box, two threaded sleeves are symmetrically slidably connected to the inner side of the detection box, the detection box drives the two threaded sleeves to slide symmetrically by a driving mechanism, a wedge block is fixedly mounted on the outer side of each threaded sleeve, and each wedge block is clamped in the assembly plate.

[0007] like Figure 1-5 As shown, the specific implementation method is as follows: by arranging an electric telescopic rod, a slide rail, and a through slot, the electric telescopic rod can extend one end into the through slot to fix the skateboard, and the wheel body can be rotated by the hydraulic telescopic rod and the driving brake device, thereby realizing the relative rotation friction detection of the wheel body and the rail body. At the same time, by arranging an assembly plate, a mounting plate, and a wedge block, the wedge block is inserted into the assembly plate, so that the height of the assembly plate is slightly adjusted upward, so that the wheel body does not contact the rail body, thereby accelerating the rotation of the wheel body, and then the wedge block is separated from the assembly plate, so that the wheel body can drive the hydraulic telescopic rod to move, and the braking device is driven to realize braking, thereby realizing braking friction detection of the rail body and the wheel body.

[0008] In a preferred embodiment, the driving mechanism includes a double-headed screw, and the double-headed screw is rotatably connected in the detection box. A limit rod is fixedly installed in the detection box, and each threaded sleeve is slidingly connected to the limit rod, and each threaded sleeve is threadedly connected to the double-headed screw.

[0009] In a preferred embodiment, rollers are rotatably connected to both sides of the slide, and each roller is movably connected to a slide rail at a corresponding position.

[0010] In a preferred embodiment, a plurality of springs are symmetrically mounted on the bottom surface of the mounting plate, and the bottom end of each spring is fixedly connected to the top surface of the mounting plate.

[0011] In a preferred embodiment, an airbag is installed inside the detection box, a slide groove is provided in each of the slide rails, and each roller is movably connected in the slide groove at a corresponding position, and the cross section of each slide groove is convex.

[0012] In a preferred embodiment, a motor is fixedly mounted on the inner side of the detection box, and the output shaft of the motor is connected to the double-headed screw.

[0013] In a preferred embodiment, a revolving door is rotatably connected to the outer side of the detection box, visual windows are provided on the outer side of the detection box and the outer side of the revolving door, and a handle is fixedly installed on the outer side of the revolving door.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model sets an electric telescopic rod, a slide rail, a slide groove, a driving brake device, a hydraulic telescopic rod and other devices, so as to fix the slide plate through the electric telescopic rod, thereby driving the wheel body to move and applying pressure through the hydraulic telescopic rod to measure the relative rotational wear between the wheel body and the track body.

[0016] 2. The utility model realizes that the wedge block is driven by the double-headed screw to be clamped in the assembly plate by arranging a wedge block, a spring, an assembly plate, a double-headed screw and other devices, so that the height of the assembly plate is slightly adjusted upward, so that the wheel body does not contact the track body, thereby facilitating the initial speed of the wheel body, reducing the laying length of the track body, and reducing the relative rotational wear between the wheel body and the track body, making the detection more accurate. Then the wedge block is separated from the assembly plate, and the wheel body drives the hydraulic telescopic rod to slide under the action of the spring. During the process, simulated pressure can be activated, and at the same time, the driving brake device is activated to brake the wheel body to achieve the purpose of brake wear detection.

[0017] To sum up, the utility model is simple to operate when in use, and the relative rotation wear detection between the wheel and the rail body and the brake wear detection between the wheel and the rail body can be selected as needed. At the same time, when performing brake wear detection, the wheel body can be given an initial speed, the laying length of the rail body can be reduced, and the relative rotation wear between the wheel body and the rail body can be reduced, so that the brake wear detection is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a rail wheel wear detection device proposed by the present invention;

[0019] Figure 2 This is a schematic cross-sectional view of a detection box of a rail wheel wear detection device proposed in the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a slide rail of a rail wheel wear detection device proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the wheel body installation structure of a rail wheel wear detection device proposed by the present invention;

[0022] Figure 5This is a schematic diagram of the wedge block installation structure of a rail wheel wear detection device proposed by the utility model.

[0023] In the figure: 1 detection box, 2 revolving door, 3 viewing window, 4 handle, 5 airbag, 6 track body, 7 slide rail, 8 hydraulic telescopic rod, 9 slide plate, 10 roller, 11 electric telescopic rod, 12 through slot, 13 mounting plate, 14 spring, 15 assembly plate, 16 roller, 17 driving brake device, 18 wheel body, 19 motor, 20 double-headed screw, 21 threaded sleeve, 22 limit rod, 23 wedge block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1-5 , a rail wheel wear detection device includes a detection box 1, a plurality of slide rails 7 are symmetrically installed on the top surface of the detection box 1, and a slide plate 9 is slidably connected in the plurality of slide rails 7. A through groove 12 is opened on the outer side of each slide rail 7, and an electric telescopic rod 11 is fixedly installed on both sides of the slide plate 9. A hydraulic telescopic rod 8 is fixedly installed on the bottom surface of the slide plate 9. The bottom surface of the hydraulic telescopic rod 8 is elastically connected to the assembly plate 15 through the mounting plate 13. The bottom surface of the assembly plate 15 is rotatably connected to the roller 16, and a driving brake device 17 is installed on the roller 16. Wheel bodies 18 are installed at both ends of the roller 16. The bottom wall of the detection box 1 is provided with a track body 6. Two threaded sleeves 21 are symmetrically slidably connected to the inner side of the detection box 1. The detection box 1 drives the two threaded sleeves 21 to slide symmetrically through a driving mechanism. A wedge block 23 is fixedly installed on the outside of each threaded sleeve 21, and each wedge block 23 is clamped in the assembly plate 15.

[0026] like Figure 1-5As shown, the embodiment is specifically as follows: by arranging an electric telescopic rod 11, a slide rail 7, and a through slot 12, the electric telescopic rod 11 can extend one end into the through slot 12 to fix the skateboard 9, and the wheel body 18 can be rotated by the hydraulic telescopic rod 8 and the driving brake device 17, so as to realize the relative rotation friction detection of the wheel body 18 and the track body 6. At the same time, by arranging an assembly plate 15, a mounting plate 13, and a wedge block 23, the wedge block 23 is inserted into the assembly plate 15, so that the height of the assembly plate 15 is slightly adjusted upward, so that the wheel body 18 does not contact the track body 6, thereby accelerating the rotation of the wheel body 18, and then the wedge block 23 is separated from the assembly plate 15, so that the wheel body 18 can drive the hydraulic telescopic rod 8 to move, and brake is realized by driving the brake device 17, thereby realizing braking friction detection of the track body 6 and the wheel body 18.

[0027] It is worth noting that the driving brake device 17 is an existing mature technology and will not be described in detail here.

[0028] The driving mechanism includes a double-headed screw 20, and the double-headed screw 20 is rotatably connected in the detection box 1. A limit rod 22 is fixedly installed in the detection box 1, and each threaded sleeve 21 is slidingly connected to the limit rod 22, and each threaded sleeve 21 is threadedly connected to the double-headed screw 20.

[0029] The two limiting rods 22 are driven by the double-headed screw 20 to slide into the assembly plate 15 at the same time. At the same time, the two limiting rods 22 and the wedge block 23 can keep the assembly plate 15 stable.

[0030] Both sides of the slide plate 9 are rotatably connected with rollers 10, and each roller 10 is movably connected to the slide rail 7 at the corresponding position.

[0031] The friction between the slide plate 9 and the slide rail 7 is reduced by the roller 10 .

[0032] A plurality of springs 14 are symmetrically mounted on the bottom surface of the mounting plate 13 , and the bottom end of each spring 14 is fixedly connected to the top surface of the assembly plate 15 .

[0033] The spring 14 facilitates lifting the assembly plate 15 upwards and reduces vibration when the wheel body 18 contacts the rail body 6 .

[0034] An airbag 5 is installed inside the detection box 1. A slide groove is provided in each slide rail 7. Each roller 10 is movably connected in the slide groove corresponding to the position. The cross section of each slide groove is convex.

[0035] The airbag 5 can reduce the impact force caused by insufficient braking, and the convex sliding groove can prevent the slide plate 9 from falling off the slide rail 7.

[0036] A motor 19 is fixedly mounted on the inner side of the detection box 1 , and an output shaft of the motor 19 is connected to a double-headed screw 20 .

[0037] The outer side of the detection box 1 is rotatably connected to a revolving door 2 . Visual windows 3 are provided on the outer sides of the detection box 1 and the revolving door 2 . A handle 4 is fixedly installed on the outer side of the revolving door 2 .

[0038] When the present invention is used, when it is necessary to detect the relative rotational wear between the wheel body 18 and the rail body 6, the electric telescopic rods 11 on both sides of the slide 9 can be started to be inserted into the through slots 12 to fix the slide 9, thereby starting the hydraulic telescopic rods 8 to drive the mounting plate 13 and the assembly plate 15 to move downward, and simulate the application of pressure to make the wheel body 18 and the rail body 6 abut against each other, and then start the driving brake device 17 to drive the wheel body 18 to rotate, so that the relative rotational wear between the wheel body 18 and the rail body 6 can be detected;

[0039] When brake wear detection is required, the slide plate 9 is first pushed to move the assembly plate 15 to the right, and the motor 19 is started to drive the double-headed screw 20 to rotate, so that the limit rods 22 on both sides move, and the wedge blocks 23 are inserted into the assembly plate 15, and the assembly plate 15 is driven to compress the spring 14 and lift upward, so that the wheel body 18 is not in contact with the rail body 6. In this way, the initial speed can be provided for the wheel body 18, and the relative rotational wear between the wheel body 18 and the rail body 6 is reduced, making the detection more accurate. Then, the driving brake device 17 is started to provide power for the rotation of the wheel body 18, and then the motor 19 is started to drive each wedge block 23 to separate from the assembly plate 15. Under the action of the spring 14, the wheel body 18 and the rail body 6 are resisted, and then the friction between the wheel body 18 and the rail body 6 drives the hydraulic telescopic rod 8 and the slide plate 9 to slide. During the sliding process, the hydraulic telescopic rod 8 can be started to apply pressure to the wheel body 18, and then the driving brake device 17 is started to brake, thereby realizing brake wear detection of the wheel body 18.

[0040] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rail wheel wear detection device, comprising a detection box (1), characterized in that: The top surface of the detection box (1) is symmetrically mounted with a plurality of slide rails (7), a slide plate (9) is slidably connected to the plurality of slide rails (7), a through slot (12) is provided on the outer side of each slide rail (7), an electric telescopic rod (11) is fixedly mounted on both sides of the slide plate (9), a hydraulic telescopic rod (8) is fixedly mounted on the bottom surface of the slide plate (9), the bottom surface of the hydraulic telescopic rod (8) is elastically connected to an assembly plate (15) via a mounting plate (13), and the bottom surface of the assembly plate (15) is rotatably connected to a roller (16) A driving brake device (17) is installed on the roller (16), and wheel bodies (18) are installed at both ends of the roller (16). A track body (6) is installed on the bottom wall of the detection box (1). Two threaded sleeves (21) are symmetrically slidably connected to the inner side of the detection box (1). The detection box (1) drives the two threaded sleeves (21) to slide symmetrically through a driving mechanism. A wedge block (23) is fixedly installed on the outer side of each threaded sleeve (21), and each wedge block (23) is clamped in the assembly plate (15).

2. The rail wheel wear detection device according to claim 1, characterized in that: The driving mechanism comprises a double-headed screw (20), and the double-headed screw (20) is rotatably connected in the detection box (1), a limiting rod (22) is fixedly installed in the detection box (1), and each threaded sleeve (21) is slidably connected to the limiting rod (22), and each threaded sleeve (21) is threadedly connected to the double-headed screw (20).

3. The rail wheel wear detection device according to claim 2, characterized in that: Both sides of the slide plate (9) are rotatably connected with rollers (10), and each roller (10) is movably connected to a slide rail (7) at a corresponding position.

4. The rail wheel wear detection device according to claim 3, characterized in that: A plurality of springs (14) are symmetrically mounted on the bottom surface of the mounting plate (13), and the bottom end of each spring (14) is fixedly connected to the top surface of the assembly plate (15).

5. The rail wheel wear detection device according to claim 4, characterized in that: An air bag (5) is installed inside the detection box (1), a slide groove is provided in each of the slide rails (7), and each roller (10) is movably connected in the slide groove corresponding to the position, and the cross section of each slide groove is convex.

6. The rail wheel wear detection device according to claim 5, characterized in that: A motor (19) is fixedly mounted on the inner side of the detection box (1), and the output shaft of the motor (19) is connected to a double-headed screw (20).

7. The rail wheel wear detection device according to claim 6, characterized in that: The outer side of the detection box (1) is rotatably connected to a revolving door (2), and visual windows (3) are provided on the outer side of the detection box (1) and the outer side of the revolving door (2). A handle (4) is fixedly installed on the outer side of the revolving door (2).

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